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A Nonrotating Asymmetric Calibration Method for Four-Component Electromagnetic Probe
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DOI：10.1109/tmag.2026.3680307.png)
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Abstract
En 中文
This article presents a novel nonrotating asymmetric calibration method (NRACM) for four-component electromagnetic probe. First, four-component electromagnetic probe is designed to simultaneously measure electric and magnetic field components: E-y, E-z, H-y and H-z. Second, in order to address the measurement errors caused by asymmetries in the near-field probing system, a NRACM is proposed for ultrawideband calibration of the four-component electromagnetic probe. The nonrotating asymmetric calibration probe system consists of a six-port vector network analyzer (VNA), a highly symmetric grounded coplanar waveguide (GCPW), and a slot line. Note that H-y and E-z are excited by GCPW, while H-z and E-y are excited by the slot line. Compared with the conventional rotating asymmetric calibration method (RACM), the NRACM is capable of achieving high-precision decoupling and calibrating the four field components without rotational measurements. Thereby, the undesired position error and the interference from uncoupled fields can be minimized. Experimental results validate the effectiveness of the NRACM, demonstrating high-precision field component calibrations over a wide frequency range.
Keywords:
Antennas and propagation
Antennas
Antenna arrays
Circuits
Integrated circuits
Digital circuits
Equivalent circuits
Logic circuits
System-on-chip
Distributed parameter circuits
Asymmetry
electromagnetic fields
near-field measurement
nonrotating asymmetric calibration method (NRACM)
Journal
IF:
1.9
Papers:
279
Citations:
2.6W